Automatic inoculation loader

Abstract

The utility model provides an automatic inoculation loader, and belongs to the technical field of microbial culture. The problems that manual cover opening of an existing loader needs accurate alignment, operation is inconvenient, mechanical cover opening and closing need transverse movement and rotation, and the needed structure is complex are solved. The loading seat is provided with a storage cavity, the upper cover covers the loading seat, the loading seat is provided with two buckle structures which are symmetrically arranged along the center line of the storage cavity, the upper cover is provided with two bosses which are respectively clamped with the buckle structures, and the bosses which move inwards along the radial direction of the upper cover can be separated from the clamping of the buckle structures. And a clamping releasing structure which can enable the boss to be separated from the clamping connection of the buckling structure when the upper cover is rotated is arranged between the buckling structure and the boss. A manual opening and closing cover and a mechanical opening and closing cover are combined, so that manual operation is convenient, and mechanical cover opening does not need rotation; a positioning groove is formed in the boss, so that the relative position of the upper cover and the loading seat can be ensured; a blocking part is arranged on the boss, so that the upper cover is prevented from being screwed over during manual operation.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of microbial culture, and relates to an automatic inoculation loader. BACKGROUND

[0002] Microbial sample culture is an important work in medical health, inspection and quarantine, disease control, food safety and the like. At present, automatic inoculation loaders are generally used in microbial inoculation, culture, separation and detection. The applicant has invented an automatic inoculation loader [application number 202422544898.0], which comprises a loading seat provided with a storage cavity and an upper cover separately provided with the loading seat. The loading seat is provided with a first annular stopper around the storage cavity. The upper cover is provided with a second annular stopper. When the upper cover is closed to the loading seat, the second annular stopper is located at the periphery of the first annular stopper. The first annular stopper is provided with two oppositely arranged first openings. The second annular stopper is provided with two second openings. The second openings are provided with elastic sheets connected to the upper cover. The loading seat is provided with buckles forming a clamping action with the elastic sheets. When the elastic sheets are deformed inwardly, the elastic sheets can be separated from the clamping of the buckles.

[0003] The above-mentioned loader forms a clamping action with the buckles through the elastic deformation of the elastic sheets. In order to prevent the elastic sheets from being damaged due to deformation, the elastic sheets are usually designed to be relatively thick. The relatively thick elastic sheets are not easy to deform, which leads to the fact that they can only be mechanically opened and cannot be manually opened. SUMMARY

[0004] The purpose of the present application is to solve the above-mentioned problems existing in the prior art, and to provide an automatic inoculation loader which can realize manual operation and mechanical operation.

[0005] The purpose of the present application can be realized by the following technical scheme:

[0006] The automatic inoculation loader comprises a loading seat provided with a storage cavity and an upper cover provided on the loading seat. The loading seat is provided with two buckle structures symmetrically arranged along the center line of the storage cavity. The upper cover is provided with two bosses forming a clamping action with the buckle structures. The bosses moving radially inwardly of the upper cover can be separated from the clamping of the buckle structures. The buckle structures and the bosses are provided with a decoupling structure which can make the bosses separated from the clamping of the buckle structures when the upper cover is rotated.

[0007] When the upper cover is closed to the loading seat, the bosses form a clamping action with the buckle structures, so that the upper cover will not fall off the loading seat, thereby avoiding the falling of the loaded articles. The two bosses are symmetrically arranged along the center line of the upper cover. When the cover needs to be opened, the mechanical clamping jaws make the two bosses move inwardly at the same time, so that the bosses are separated from the clamping of the buckle structures, or the upper cover is rotated by manual / mechanical rotation, and the bosses are separated from the clamping of the buckle structures under the action of the decoupling structure. The present loader can realize manual and mechanical opening and closing of the cover, and is flexible in operation, avoiding the situation that the upper cover cannot be opened manually.

[0008] In order to ensure that the convex can move inward, either the convex can be elastically deformed, or the convex is arranged on a structure that can be elastically deformed. In the present loader, a ring-shaped retaining edge is formed on the periphery of the upper cover, and the ring-shaped retaining edge can be elastically deformed inward when being pressed, and the convex is arranged on the ring-shaped retaining edge. When the convex is pressed inward, the ring-shaped retaining edge is driven to move inward together, and after the external force disappears, the ring-shaped retaining edge can reset the convex.

[0009] In the automatic inoculation loader, a positioning surface is arranged on the convex, the buckle structure is pressed on the positioning surface when the upper cover is combined with the loading seat, a limiting protrusion extending radially along the storage cavity is arranged on the buckle structure, and a limiting groove corresponding to the limiting protrusion is arranged on the positioning surface. When the upper cover is combined with the loading seat, the limiting protrusion is limited in the limiting groove, and when the convex moves inward, the limiting protrusion can be detached from the limiting groove.

[0010] The buckle structure is pressed on the positioning surface to limit the upper cover upward and downward, and the limiting protrusion extends into the limiting groove to limit the upper cover circumferentially, thereby preventing the upper cover from moving relative to the loading seat. When the cover is opened, the mechanical clamping jaw drives the two convexes to move inward along the extension direction of the limiting protrusion, so that the limiting protrusion is detached from the limiting groove, and the separation of the upper cover and the loading seat is realized.

[0011] In the automatic inoculation loader, the decoupling structure includes a first guide inclined surface arranged on one side of the limiting groove and a detachment surface arranged on the limiting protrusion. The first guide inclined surface is inclined outward from bottom to top along the width direction of the limiting groove. When the upper cover is rotated in the opening direction, the first guide inclined surface presses the detachment surface to make the limiting protrusion upwardly detached from the limiting groove.

[0012] The buckle structure is elastic, and when the detachment surface is pressed by the first guide inclined surface, the buckle structure will be elastically deformed, thereby ensuring that the limiting protrusion can be smoothly detached from the limiting groove. According to the operation habit, the first guide inclined surface presses the detachment surface only when the upper cover is counterclockwise rotated.

[0013] In the automatic inoculation loader, the buckle structure includes a stand and an elastic part connected to the upper end of the stand. The elastic part extends laterally along the upper cover, and the limiting protrusion is arranged on the lower side of the elastic part, and the extension direction of the limiting protrusion is perpendicular to the extension direction of the elastic part.

[0014] When the elastic part is elastically deformed, the limiting protrusion at each position in the length direction thereof can move upward synchronously, and when the first guide inclined surface presses the detachment surface, the limiting protrusion at each position in the length direction thereof can be synchronously detached from the limiting groove.

[0015] In the aforementioned automatic inoculation loader, the limiting protrusion is semi-cylindrical, and the disengagement surface is the outer surface of the limiting protrusion. When the top cover is rotated, the first guide slope presses against the outer surface of the limiting protrusion, causing the limiting protrusion to move upward. When the disengagement surface disengages from the first guide slope, the limiting protrusion presses against the positioning surface. Continued rotation allows the protrusion to disengage from the clamping structure.

[0016] In the above-mentioned automatic inoculation loader, a second guide slope is provided on the upper part of the side of the protrusion near the first guide slope. The distance between the second guide slope and the first guide slope gradually decreases from bottom to top. When the top cover is rotated in the closing direction, the second guide slope presses against the release surface, causing the limiting protrusion to move upward past the positioning surface and then be inserted into the limiting groove.

[0017] The lid is closed in a clockwise direction, enabling manual closing. To improve the reliability of closing the lid, a third guide slope is provided at one end of the elastic part, which is opposite to the second guide slope. The third guide slope is higher than the limiting protrusion. When the lid is rotated in the closing direction, the second guide slope first presses against the third guide slope, and then presses against the release surface.

[0018] In the aforementioned automatic inoculation loader, a blocking part is provided on the upper part of the side of the boss away from the first guide slope. The upper part of the blocking part is higher than the upper part of the second guide slope. When the elastic part abuts against the blocking part, the upper cover cannot continue to rotate in the closing direction, thus preventing the upper cover from being rotated over.

[0019] In the aforementioned automatic inoculation loader, a positioning groove is provided on the lower side of the boss, and the width of the positioning groove gradually decreases from bottom to top. Two positioning grooves located on different bosses are arranged opposite each other.

[0020] The outer side of the boss is the clamping surface, and the jaws act on the clamping surface when clamping the top cover. The opening of the positioning groove faces downward, and a positioning block corresponding to the positioning groove is set on the jaws. When the positioning block is inserted into the positioning groove and the jaws are not clamped, the top cover is pressed onto the positioning block under the action of gravity, and the top cover is accurately positioned under the guidance of the positioning groove.

[0021] In the above-mentioned automatic inoculation loader, the upper part of the elastic part near the upper cover is provided with a fourth guide slope that slopes downward from the outside to the inside, and the lower part of the boss is provided with a fifth guide slope that slopes downward from the outside to the inside. When the upper cover is closed from top to bottom, the fourth guide slope presses the fifth guide slope, causing the boss to move inward.

[0022] When the top and bottom covers need to be placed, the grippers grab the top cover and place it into the loading seat from top to bottom. During this process, the fourth guide ramp presses against the fifth guide ramp, causing the boss to move inward. Finally, the boss moves to the lower side of the elastic part after passing the elastic part. When the grippers are released, the boss is reset under the elastic action of the annular retaining edge of the top cover, so that the boss and the elastic part are engaged.

[0023] In the aforementioned automatic inoculation loader, the lower part of the upper cover has multiple protrusions evenly distributed circumferentially, which abut against the loading seat when the lid is closed. Due to the presence of multiple protrusions, a gap exists between the upper cover and the loading seat after the lid is closed, facilitating airflow.

[0024] In the aforementioned automatic inoculation loader, the loading seat has two opposing baffles, and the inner side of each baffle has a mating surface that is adapted to the outer periphery of the upper cover.

[0025] One of the platforms has a printing area for printing information label barcodes.

[0026] In the aforementioned automatic inoculation loader, the snap-fit ​​structure includes a slot on the mating surface of the baffle and a limiting protrusion on the upper side of the slot. The limiting protrusion extends radially along the storage cavity. When snapped in, the protrusion extends into the slot and the limiting protrusion snaps into the limiting groove.

[0027] Compared with existing technologies, this automated inoculation loader has the following advantages:

[0028] The manual and mechanical opening and closing mechanism of the cover is combined, making manual operation convenient and eliminating the need for rotation when opening the cover mechanically. A positioning groove is set on the boss to ensure the relative position of the cover and the gripper, thereby effectively ensuring the relative position of the cover and the loading seat. A blocking part is provided on the boss to prevent the cover from being rotated too much during manual operation. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the automatic inoculation loader in Embodiment 1.

[0030] Figure 2 This is a cross-sectional view of the automatic inoculation loader in Embodiment 1.

[0031] Figure 3 This is an exploded view of the automatic inoculation loader in Example 1.

[0032] Figure 4 This is a schematic diagram of the buckle structure and the boss in Embodiment 1.

[0033] Figure 5 This is a structural schematic diagram of the boss in Embodiment 1.

[0034] Figure 6 This is a schematic diagram of the snap-fit ​​structure in Embodiment 1.

[0035] In the diagram, 1 is the loading seat; 11 is the storage cavity; 12 is the snap-fit ​​structure; 121 is the limiting protrusion; 122 is the release surface; 123 is the column; 124 is the elastic part; 125 is the fourth guide slope; 126 is the third guide slope; 13 is the baffle; 131 is the mating surface; 2 is the top cover; 21 is the boss; 211 is the positioning surface; 212 is the limiting groove; 213 is the first guide slope; 214 is the second guide slope; 215 is the blocking part; 216 is the positioning groove; 217 is the fifth guide slope; and 22 is the protrusion. Detailed Implementation

[0036] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings to further illustrate the technical solutions of the present invention. However, the present invention is not limited to these embodiments.

[0037] Example 1

[0038] like Figures 1-3 The automatic inoculation loader shown includes a loading seat 1 with a storage cavity 11 on its upper part and an upper cover 2 covering the loading seat 1. The loading seat 1 has two locking structures 12 arranged symmetrically along the centerline of the storage cavity 11. An annular retaining edge is formed around the upper cover 2, and two protrusions 21 are provided on the annular retaining edge, each engaging with one of the locking structures 12. When the grippers press on the protrusions 21, the annular retaining edge can elastically deform inward, causing the protrusions 21 to disengage from the locking structures 12. After the external force disappears, the annular retaining edge can reset the protrusions 21. A disengagement structure is provided between the locking structures 12 and the protrusions 21, allowing the protrusions 21 to disengage from the locking structures 12 when the upper cover 2 is rotated.

[0039] When the cover needs to be opened, the mechanical grippers cause the two protrusions 21 to move inward simultaneously, so that the protrusions 21 are disengaged from the latching structure 12. Alternatively, the cover 2 can be rotated manually or mechanically, and the protrusions 21 can be disengaged from the latching structure 12 under the action of the disengagement structure.

[0040] like Figures 4-6 As shown, the boss 21 has a positioning surface 211. When the upper cover 2 is closed with the loading seat 1, the snap-fit ​​structure 12 presses against the positioning surface 211. Figure 6 As shown, the latching structure 12 is provided with a limiting protrusion 121 extending radially along the storage cavity 11, such as... Figure 5 As shown, the positioning surface 211 is provided with a limiting groove 212 corresponding to the limiting protrusion 121. When the upper cover 2 is closed with the loading seat 1, the limiting protrusion 121 is limited in the limiting groove 212. When the boss 21 moves inward, the limiting protrusion 121 can be dislodged from the limiting groove 212.

[0041] The snap-fit ​​structure 12 presses against the positioning surface 211 to limit the upper cover 2 vertically. The limiting protrusion extends into the limiting groove 212 to limit the upper cover 2 circumferentially, preventing the upper cover 2 from moving relative to the loading seat 1. When the cover is opened, the mechanical grippers cause the two protrusions 21 to move inward along the extension direction of the limiting protrusion 121, causing the limiting protrusion 121 to disengage from the limiting groove 212, thus separating the upper cover 2 from the loading seat 1.

[0042] like Figure 4 and Figure 5 As shown, the release structure includes a first guide slope 213 on one side of the limiting groove 212 and a release surface 122 on the limiting protrusion 121. The first guide slope 213 slopes outward from bottom to top along the width direction of the limiting groove 212. When the top cover 2 is rotated in the opening direction, the first guide slope 213 presses against the release surface 122, causing the limiting protrusion 121 to release upward from the limiting groove 212. The latching structure 12 is elastic. When the release surface 122 is pressed by the first guide slope 213, the latching structure 12 will undergo elastic deformation, thereby ensuring that the limiting protrusion 121 can smoothly release from the limiting groove 212. According to operating habits, the first guide slope 213 presses against the release surface 122 only when the top cover 2 is rotated counterclockwise.

[0043] Specifically, such as Figure 6 As shown, the snap-fit ​​structure 12 includes a post 123 and an elastic part 124 connected to the upper end of the post 123. The elastic part 124 extends laterally along the upper cover 2. A limiting protrusion 121 is provided on the lower side of the elastic part 124, and the extending direction of the limiting protrusion 121 is perpendicular to the extending direction of the elastic part 124. When the elastic part 124 undergoes elastic deformation, the limiting protrusion 121 can move upward synchronously at all points along its length. When the first guide slope 213 presses against the release surface 122, the limiting protrusion 121 can simultaneously disengage from the limiting slot at all points along its length. To facilitate the molding of the snap-fit ​​structure 12, a mold hole is provided on the lower side of the elastic part 124.

[0044] In this embodiment, the limiting protrusion 121 is semi-cylindrical, and the disengagement surface 122 is the outer surface of the limiting protrusion 121. When the upper cover 2 is rotated, the first guide slope 213 presses against the outer surface of the limiting protrusion 121, causing the limiting protrusion 121 to move upward. When the disengagement surface 122 disengages from the first guide slope 213, the limiting protrusion 121 presses against the positioning surface 211. Continued rotation can cause the boss 21 to disengage from the clamping structure 12.

[0045] like Figure 5As shown, a second guide slope 214 is provided on the upper part of the side of the boss 21 near the first guide slope 213. The distance between the second guide slope 214 and the first guide slope 213 gradually decreases from bottom to top. When the upper cover 2 is rotated in the closing direction, the second guide slope 214 presses against the release surface 122, causing the limiting protrusion 121 to move upward past the positioning surface 211 and then be inserted into the limiting groove 212.

[0046] The lid closes clockwise, allowing for manual closing. To improve the reliability of the lid closing, such as... Figure 6 As shown, a third guide slope 126 is provided at one end of the elastic part 124, which is opposite to the second guide slope 214. The third guide slope 126 is higher than the limiting protrusion 121. When the upper cover 2 is rotated in the closing direction, the second guide slope 214 first presses against the third guide slope 126, and then presses against the release surface 122.

[0047] like Figure 5 As shown, a blocking part 215 is provided on the upper part of the side of the boss 21 away from the first guide slope 213. The upper part of the blocking part 215 is higher than the upper part of the second guide slope 214. When the elastic part 124 touches the blocking part 215, the upper cover 2 cannot be rotated further in the closing direction, thus preventing the upper cover 2 from being rotated over.

[0048] like Figure 4 and Figure 5 As shown, a positioning groove 216 is provided on the lower side of the boss 21. The width of the positioning groove 216 gradually decreases from bottom to top, and two positioning grooves 216 located on different bosses 21 are arranged opposite each other. The outer surface of the boss 21 is the clamping surface, and the gripper acts on the clamping surface when clamping the upper cover 2. The opening of the positioning groove 216 faces downward, and a positioning block corresponding to the positioning groove 216 is provided on the gripper. When the positioning block extends into the positioning groove and the gripper is not clamped, the upper cover 2 is pressed onto the positioning block under the action of gravity, and the upper cover 2 is accurately positioned under the guidance of the positioning groove 216.

[0049] like Figure 6 As shown, the upper part of the elastic part 124 near the upper cover 2 is provided with a fourth guide slope 125 that slopes downward from the outside to the inside, such as... Figure 4 and Figure 5 As shown, the lower part of the boss 21 is provided with a fifth guide slope 217 that slopes downward from the outside to the inside. When the upper cover 2 is closed from top to bottom, the fourth guide slope 125 presses the fifth guide slope 217, causing the boss 21 to move inward.

[0050] When the upper and lower lids need to be placed, the grippers grab the upper lid 2 and place it into the loading seat 1 from top to bottom. During this process, the fourth guide slope 125 presses the fifth guide slope 217 to make the boss 21 move inward. Finally, the boss 21 moves to the lower side of the elastic part 124 after passing the elastic part 124. When the grippers are released, the boss 21 is reset under the elastic action of the annular stop edge of the upper lid 2, so that the boss 21 and the elastic part 124 form a snap-fit.

[0051] like Figure 2 and Figure 3 As shown, the lower part of the upper cover 2 has a plurality of protrusions 22 evenly distributed along the circumference. When the lid is closed, the plurality of protrusions 22 abut against the loading seat 1. The arrangement of the protrusions 22 creates a gap between the upper cover 2 and the loading seat 1, which facilitates the passage of airflow.

[0052] like Figure 1 and Figure 3 As shown, the loading seat 1 has two opposing baffles 13. The inner side of the baffle 13 has a mating surface 131 that is adapted to the outer periphery of the upper cover 2. The snap-fit ​​structure 12 is located between the two baffles 13 and close to the baffles 13, leaving a large operating space.

[0053] The upper surface of one of the stops 13 is the printing area for printing information marking barcodes.

[0054] Example 2

[0055] The structural principle of this embodiment is basically the same as that of embodiment one. The difference is that the snap-fit ​​structure includes a slot on the mating surface of the baffle and a limiting protrusion on the upper side of the slot. The limiting protrusion extends radially along the storage cavity, the slot extends laterally and the extension direction is perpendicular to the extension direction of the limiting protrusion. When snapped, the boss extends into the slot and the limiting protrusion snaps into the limiting groove.

[0056] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. An automatic inoculation loader, comprising a loading seat (1) having a storage cavity (11) and an upper cover (2) covering the loading seat (1), characterized in that, The loading seat (1) is provided with two snap-fit ​​structures (12) symmetrically arranged along the center line of the storage cavity (11). The upper cover (2) is provided with two protrusions (21) that respectively engage with the snap-fit ​​structures (12). The protrusions (21) that move radially inward along the upper cover (2) can disengage from the snap-fit ​​structures (12). A disengagement structure is provided between the snap-fit ​​structures (12) and the protrusions (21) so that the protrusions (21) can disengage from the snap-fit ​​structures (12) when the upper cover (2) is rotated.

2. The automatic inoculation loader according to claim 1, characterized in that, The boss (21) is provided with a positioning surface (211). When the upper cover (2) is closed with the loading seat (1), the buckle structure (12) presses on the positioning surface (211). The buckle structure (12) is provided with a limiting protrusion (121) extending radially along the storage cavity (11). The positioning surface (211) is provided with a limiting groove (212) corresponding to the limiting protrusion (121). When the upper cover (2) is closed with the loading seat (1), the limiting protrusion (121) is limited in the limiting groove (212). When the boss (21) moves inward, the limiting protrusion (121) can be dislodged from the limiting groove (212).

3. The automatic inoculation loader according to claim 2, characterized in that, The release structure includes a first guide slope (213) on one side of the limiting groove (212) and a release surface (122) on the limiting protrusion (121). The first guide slope (213) is inclined from bottom to top and outward along the width direction of the limiting groove (212). When the top cover (2) is rotated in the opening direction, the first guide slope (213) presses against the release surface (122) to make the limiting protrusion (121) release upward from the limiting groove (212).

4. The automatic inoculation loader according to claim 3, characterized in that, The buckle structure (12) includes a column (123) and an elastic part (124) connected to the upper end of the column (123). The elastic part (124) extends laterally along the upper cover (2). The limiting protrusion (121) is located on the lower side of the elastic part (124) and the extending direction of the limiting protrusion (121) is perpendicular to the extending direction of the elastic part (124).

5. The automatic inoculation loader according to claim 3, characterized in that, The limiting protrusion (121) is semi-cylindrical, and the detachment surface (122) is the outer surface of the limiting protrusion (121).

6. The automatic inoculation loader according to claim 4, characterized in that, The upper part of the boss (21) near the first guide slope (213) is provided with a second guide slope (214). The distance between the second guide slope (214) and the first guide slope (213) gradually decreases from bottom to top. When the upper cover (2) is rotated in the closing direction, the second guide slope (214) presses against the release surface (122) so that the limiting protrusion (121) moves upward past the positioning surface (211) and then gets stuck in the limiting groove (212).

7. The automatic inoculation loader according to claim 6, characterized in that, The boss (21) has a blocking part (215) on the upper part of the side away from the first guide slope (213).

8. The automatic inoculation loader according to claim 1, characterized in that, The lower side of the boss (21) is provided with a positioning groove (216), the width of the positioning groove (216) gradually decreases from bottom to top, and the two positioning grooves (216) located on different bosses (21) are arranged opposite to each other.

9. The automatic inoculation loader according to claim 6, characterized in that, The elastic part (124) has a fourth guide slope (125) that slopes downward from the outside to the inside on the upper part of the side near the top cover (2), and the boss (21) has a fifth guide slope (217) that slopes downward from the outside to the inside on the lower part. When the top cover (2) is closed from top to bottom, the fourth guide slope (125) presses the fifth guide slope (217) to make the boss (21) move inward.

10. The automatic inoculation loader according to claim 1, characterized in that, The lower part of the cover (2) has a plurality of protrusions (22) evenly distributed along the circumference, and when the cover is closed, the plurality of protrusions (22) abut against the loading seat (1).

Images